@arr1=("java","c++","C");
@arr2=("python   ","perl  ","socket ","unix");
@arr3=("html","script","css");
print("this is first array........\n",@arr1,"\n");
print("this is first array size ........\n",$#arr1,"\n");
print("this is second  array........\n",@arr2,"\n");
print("concat of arrays\n",join("@arr2",@arr1[0,1]));